Home / 7,180.13-9,907.97-4,036.11

Finding the Fourth Proportional to 7,180.13, 9,907.97 and 4,036.11

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Solution

The fourth proportional to 7,180.13, 9,907.97 and 4,036.11 is: 5,569.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.13 : 9,907.97 = 4,036.11 : x
  2. Step 2: Convert to fraction form
    7,180.13/9,907.97 = 4,036.11/x
  3. Step 3: Cross multiply
    7,180.13x = 9,907.97 × 4,036.11
  4. Step 4: Simplify right side
    7,180.13x = 39,989,636.62
  5. Step 5: Solve for x
    x = 39,989,636.62/7,180.13
  6. Step 6: Final answer
    x = 5,569.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.